For a hot second, we thought she might have gotten rid of her colourful hair after posting a video of herself wearing a blunt bob wig for a photo shoot, but it appears that hiding underneath all along was her vibrant hair, and after seeing this colour, we can see why. To refresh her previously pastel pink shade, Williams opted for an ultraviolet colour that when seen in different lights, changes to a blue-toned shade, making it a beautiful illusion.
Hairstylist Ryan Richman posted all angles of Williams's new ultraviolet hue on Instagram, detailing the styling products — a mix of IGK Next Level Volume Spray (£24) was used to give volume and shine, and IGK Rich Kid Coconut Hair Gel (£14) ensured every strand stayed perfectly in place. Richman also added extensions to give added volume to the look and finished off with Miu Miu bows, which one Instagram commenter described as "Game of Bows," and we're fully on board with that.
But of course, Williams had to dedicate her look to the final season somehow, and she did just that by wearing the new Game of Thrones Urban Decay collection. Makeup artist Kindra Mann used Game of Thrones Mother of Dragons Highlight Palette in shades Rhaegal and Drogon, then she swept the Game of Thrones Eyeshadow Palette in shade Take the Black over the liner to add a subtle pop.
Get a closer look at her vibrant purple hair ahead; it might be one of our favourites yet.